Environmental context sensing for usability evaluation in mobile HCI by means of small wireless sensor networks
Karin Anna Hummel, Andrea D. Hess, Thomas Grill · 2008
In usability evaluations, experiments are often conducted in closed laboratory situations to avoid disturbing influences. Due to non-realistic usage assumptions, this approach has important shortcomings when mobile Human Computer Interactions (m-HCI) have to be evaluated. Field studies allow to perform experiments close to real-world conditions, but potentially introduce influences caused by the environment.